Patents by Inventor Jin Hwan Choi

Jin Hwan Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230269890
    Abstract: A display device includes a display module rollable in a rolling direction, and a support member facing the display module and rollable together with the display module. The support member includes a plurality of support bars arranged along the rolling direction, and a support layer which is between the display module and the plurality of support bars. Each of the plurality of support bars includes first and second portions at opposing ends of the support bar, along a direction crossing the rolling direction, and a third support portion between the first and second support portions, connecting the first support portion to the second support portion, and corresponding to the display module, where a thickness of each of the first support portion and the second support portion is greater than a thickness of the third support portion.
    Type: Application
    Filed: December 19, 2022
    Publication date: August 24, 2023
    Inventors: DONGWON CHOI, JONGHWA LEE, JIYEON KIM, TAEWOONG KIM, TAE-HO KIM, JIN HWAN CHOI
  • Patent number: 11729920
    Abstract: A display device including: a display panel configured to display an image; and a winder configured to fix a first end portion of the display panel thereinto, wherein the winder includes a first fixing portion including a first external surface which is curved, and a second fixing portion that includes a second external surface which is curved and that faces the first external surface, wherein the first end portion of the display panel may be interposed between the first external surface and the second external surface.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Sung Kim, Tae An Seo, Jung Hun Lee, Jin Hwan Choi
  • Publication number: 20230232553
    Abstract: A display device includes: a first module including a first housing and a first roller portion; a plurality of support portions having first end portions fixed to the first roller portion and extending in a first direction; a display panel disposed to overlap the support portions and including a first surface and a second surface opposite to the first surface; and a second module including a second housing to which second end portions of the support portions are fixed. The support portions are disposed on the second surface, the support portions include a first support portion, and a second support portion spaced apart from the first support portion in a second direction intersecting the first direction, the first support portion includes a concave pattern concave in a direction facing the second surface, and the second support portion includes a convex pattern convex in the direction facing the second surface.
    Type: Application
    Filed: September 2, 2022
    Publication date: July 20, 2023
    Inventors: Jae Ho AHN, Beom Jin KIM, Tae Woong KIM, Sang Jun LEE, Jin Hwan CHOI
  • Publication number: 20230209741
    Abstract: A display module including a display unit and a support member disposed below the display unit and including first areas and second areas. The support member includes a matrix, a first supporter disposed in the matrix and including first extension parts, each extending in a first direction and spaced apart from each other in a second direction crossing the first direction, and a second supporter disposed in the matrix and including second extension parts, each extending in the first direction and spaced apart from each other in the second direction, and connection parts disposed between the second extension parts, where the second extension parts and the connection parts define openings in the second supporter.
    Type: Application
    Filed: September 30, 2022
    Publication date: June 29, 2023
    Inventors: JIN HWAN CHOI, BEOMJIN KIM, JIYEON KIM, TAE WOONG KIM, TAE-HO KIM, JAEHO AHN, SANGJUN LEE, JONGHWA LEE, DONGWON CHOI
  • Publication number: 20230180404
    Abstract: A display device includes a display module, a support layer disposed below the display module, a support layer disposed below the display module, and including a rolling portion wound and unwound in a first direction, where the rolling portion includes a central portion, a first region between a first edge of the rolling portion and the central portion, and a second region between a second edge of the rolling portion and the central portion, a first support bar disposed in the central portion, second support bars disposed in the first region, and third support bars disposed in the second region. A width of each of the second support bars in the first direction is greater than a width of the first support bar, and widths of the second support bars in the first direction gradually increase as being closer to the first edge.
    Type: Application
    Filed: September 7, 2022
    Publication date: June 8, 2023
    Inventors: DONGWON CHOI, BEOMJIN KIM, JIN HWAN CHOI, JIYEON KIM
  • Publication number: 20230176620
    Abstract: A display device includes a display module rolled in a second direction crossing a first direction with respect to a rolling axis extending in the first direction and a module supporter disposed under the display module. The module supporter includes a support layer, a plurality of coating layers disposed in the support layer, extending in the first direction, and arranged in the second direction, and a plurality of support bars each being disposed in a corresponding coating layer among the plurality of coating layers.
    Type: Application
    Filed: August 24, 2022
    Publication date: June 8, 2023
    Inventors: DONGWON CHOI, BEOMJIN KIM, JIN HWAN CHOI, JONGHWA LEE
  • Publication number: 20230138809
    Abstract: A flexible display panel of an expandable display device includes a first side with a display unit, and a second side opposite to the first side. A bending guide includes an external guide that faces part of the first side and has a first curved side, and an internal guide that faces part of the second side and has a second curved side. A slider that slides on the bending guide is attached to one end portion of the flexible display panel. A radius of the first curved side is greater than a radius of the second curved side. When the slider moves toward the bending guide, the first side contacts the first curved side and is bent by the first curved side, and when the slider moves away from the bending guide, the second side contacts the second curved side and is bent by the second curved side.
    Type: Application
    Filed: January 3, 2023
    Publication date: May 4, 2023
    Inventors: JUNG HUN LEE, SUN HO KIM, YOUNG-SEOK SEO, TAE AN SEO, JIN HWAN CHOI
  • Publication number: 20230088689
    Abstract: A display device includes a housing, a display module, a support film, and a frame. The display module is accommodated in the housing in a first state and unrolled from the housing to a first direction in a second state. The support film is accommodated in the housing in the first state and unrolled from the housing to the first direction in the second state to support the display module. The frame shrinks to a first shape in the first state and expands to a second shape in the second state in a way such that the frame applies a tensile stress to the support film in the second state.
    Type: Application
    Filed: June 9, 2022
    Publication date: March 23, 2023
    Inventors: JAEHO AHN, BEOMJIN KIM, TAEWOONG KIM, JIN HWAN CHOI
  • Publication number: 20230078747
    Abstract: An embodiment provides a display device including a first roller and a second roller spaced apart from each other, a rotation belt surrounding the first roller and the second roller; and a display panel including a portion disposed on the rotation belt, wherein the display panel is extended by being released from the rotation belt in a first direction.
    Type: Application
    Filed: July 7, 2022
    Publication date: March 16, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jae Ho AHN, Beom Jin KIM, Tae Woong KIM, Sang Jun LEE, Jin Hwan CHOI
  • Publication number: 20230056973
    Abstract: A display device includes: a display module, a lifting part disposed on a rear surface of the display module and connected to the display module, and a drive belt connected to the lifting part and which moves in a first direction to extend and retract the lifting part in the first direction. The drive belt moves along a guide groove that is defined in the lifting part and that is open in the first direction.
    Type: Application
    Filed: April 13, 2022
    Publication date: February 23, 2023
    Inventors: TAE WOONG KIM, SANGJUN LEE, BEOMJIN KIM, JONGHWA LEE, JIN HWAN CHOI
  • Patent number: 11570915
    Abstract: A display device includes a display module extending in a first direction, a supporting portion disposed under the display module and which supports a part of the display module, a first driving part connected to a first end of the display module to roll and unroll the display module, a connecting portion connected to a second end of the display module, and a second driving part connected to the connecting portion to roll and unroll the connecting portion. The second driving part unrolls the connecting portion when the first driving part rolls the display module, and the second driving part rolls the connecting portion when the first driving part unrolls the display module.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeongho Kim, Hyungsik Kim, Dongwon Choi, Jin Hwan Choi, Hayk Khachatryan
  • Patent number: 11545054
    Abstract: A flexible display panel of an expandable display device includes a first side with a display unit, and a second side opposite to the first side. A bending guide includes an external guide that faces part of the first side and has a first curved side, and an internal guide that faces part of the second side and has a second curved side. A slider that slides on the bending guide is attached to, one end portion of the flexible display panel. A radius of the first curved side is greater than a radius of the second curved side. When the slider moves toward the bending guide, the first side contacts the first curved side and is bent by the first curved side, and when the slider moves away from the bending guide, the second side contacts the second curved side and is bent by the second curved side.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: January 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Hun Lee, Sun Ho Kim, Young-Seok Seo, Tae An Seo, Jin Hwan Choi
  • Patent number: 11500800
    Abstract: Provided is a semiconductor device and a semiconductor system. A semiconductor device can include a command priority policy manager circuit which generates command priority policy information including a command priority compliance policy for a command directed to a device. A host interface circuit can be coupled to the command priority policy manager circuit to receive the command priority policy information from the command priority policy manager circuit, where the host interface circuit operable to transmit the command priority policy information via an electrical interface to the device.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Min Kim, Jeong-Woo Park, Wook Han Jeong, Jin Hwan Choi
  • Publication number: 20220357775
    Abstract: A display device includes a display module, a plurality of support bars disposed on a rear surface of the display module, a roller which is connected to one end of the display module and around which the display module and part of the plurality of support bars are wound, and a housing which accommodates the display module, the plurality of support bars, and the roller. A gap between the plurality of support bars varies according to areas of the display module.
    Type: Application
    Filed: November 15, 2019
    Publication date: November 10, 2022
    Inventors: Jin Hwan CHOI, Hyunwoo KOO, Taewoong KIM, Dongwon CHOI, Hayk KHACHATRYAN
  • Publication number: 20220279667
    Abstract: An electronic device includes a display module including a display unit and a hinge unit coupled to the display unit and configured to be rolled with the display unit, the display unit including a display panel, a flexible circuit board connected to the display panel, and a main circuit board connected to the flexible circuit board, a housing including sidewall portions each extending in a first direction, in which at least one of the sidewall portions includes an accommodation groove to which the main circuit board is inserted, and the sidewall portions are deformable between a closed state of surrounding the display module and an opened state of exposing at least a portion of the display module outside of the housing.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 1, 2022
    Inventors: Jonghwa LEE, Beomjin KIM, Dongwon CHOI, Jin Hwan CHOI, Taewoong KIM
  • Publication number: 20220269312
    Abstract: A display device includes a display module, a module support disposed below the display module, and a housing which receives the display module and the module support. The module support includes: a support layer disposed below the display module, and a plurality of support bars disposed in the support layer and having a modulus greater than a modulus of the support layer.
    Type: Application
    Filed: December 11, 2019
    Publication date: August 25, 2022
    Inventors: Jin Hwan CHOI, Hayk KHACHATRYAN, Hyunwoo KOO, Dongwon CHOI, Taewoong KIM
  • Publication number: 20220262281
    Abstract: A display device includes a display module, a roller connected to a first end of the display module, and a first arm and a second arm disposed on a rear surface of the display module, spaced apart from each other, and connected to a second end of the display module. Each of the first arm and the second arm includes joint units coupled to each other and rotatable relative to each other, and a torsion spring disposed in a portion of adjacent ones of the joint units.
    Type: Application
    Filed: February 14, 2022
    Publication date: August 18, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: YOUNGSAM KIM, JIN HWAN CHOI, TAEWOONG KIM
  • Publication number: 20220264754
    Abstract: A display device includes a display module and a module supporter below the display module. The module supporter includes a support layer, and a plurality of support bars in the support layer and arranged in a first direction. The plurality of support bars extend in a second direction that intersects the first direction. At least one groove having a predetermined shape is formed on lateral surfaces of at least one of the plurality of support bars. The lateral surfaces are opposite to each other in the first direction.
    Type: Application
    Filed: November 30, 2021
    Publication date: August 18, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: BEOMJIN KIM, JONGHWA LEE, DONGWON CHOI, JIN HWAN CHOI, TAEWOONG KIM
  • Publication number: 20220238626
    Abstract: A display device includes a display module. A support layer is disposed below the display module. A plurality of support bars is disposed inside the support layer and extends outside of the support layer. Each of the plurality of support bars includes first and second ends that are disposed outside of the support layer. A plurality of joints are configured to receive the first and second ends of the plurality of support bars. The plurality of joints are coupled to each other. The coupled plurality of joints are configured to rotate with respect to each other.
    Type: Application
    Filed: October 20, 2021
    Publication date: July 28, 2022
    Inventors: DONGWON CHOI, JIN HWAN CHOI, BEOMJIN KIM, TAEWOONG KIM, JONGHWA LEE
  • Publication number: 20220240402
    Abstract: A rollable display device including: a support module; a display module disposed on the support module and including a display area and a non-display area adjacent to the display area; and a resin layer disposed between the support module and the display module, the display module including a display panel including a plurality of pixels, the support module including: a plurality of support bars extending in a first direction and arranged in a second direction crossing the first direction, wherein the support bars are spaced apart from each other; and a plurality of hinges disposed between the support bars and coupled with the support bars disposed adjacent thereto, and wherein each of the support bars is rotatably coupled with the hinges with respect to a driving axis extending in the first direction and the driving axis penetrates the display panel when viewed in a cross-section.
    Type: Application
    Filed: November 29, 2021
    Publication date: July 28, 2022
    Inventors: JIN HWAN CHOI, BEOMJIN KIM, JONGHWA LEE, DONGWON CHOI, TAEWOONG KIM